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곱셈: 2 x 21X2

1

		1	2
		1	4
		4	8
	1	2	0
	1	6	8

2

		1	4
		5	3
		4	2
	7	0	0
	7	4	2

3

		4	5
		8	5
	2	2	5
3	6	0	0
3	8	2	5

4

		1	2
		2	7
		8	4
	2	4	0
	3	2	4

5

		2	2
		9	9
	1	9	8
1	9	8	0
2	1	7	8

6

		1	0
		6	1
		1	0
	6	0	0
	6	1	0

7

		4	1
		8	1
		4	1
3	2	8	0
3	3	2	1

8

		2	2
		3	4
		8	8
	6	6	0
	7	4	8

9

		5	3
		7	4
	2	1	2
3	7	1	0
3	9	2	2

10

		5	4
		9	1
		5	4
4	8	6	0
4	9	1	4

11

		8	1
		1	4
	3	2	4
	8	1	0
1	1	3	4

12

		9	3
		8	0
			0
7	4	4	0
7	4	4	0

13

		4	5
		6	4
	1	8	0
2	7	0	0
2	8	8	0

14

		7	4
		6	3
	2	2	2
4	4	4	0
4	6	6	2

15

		4	3
		7	1
		4	3
3	0	1	0
3	0	5	3

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